Nick Carr wrote "IT Doesn't Matter" for the Harvard Business Review three years ago. Carr argued that IT had matured to the point that many of the opportunities for competitive advantage through IT investment had disappeared. Now he's in a video interview for the "Hot Seat" on Network World.

In the aforementioned article, Carr used examples of the steamship, electricity and rail to show how initial advantages disappear when the service nears the point of commodification. IT has followed this pattern in most instances, except in niche markets. Nowadays, a company can take advantage of what was once only available to huge companies or countries quickly and for relatively low cost.

So how is one to look at IT from a business standpoint? Think risk.